VMPC (Variably Modified Permutation Composition) for cryptography is a stream cipher similar to the well known and popular cipher RC4 designed by Ron...

In mathematics, a permutation of a set can mean one of two different things: an arrangement of its members in a sequence or linear order, or the act or...

distinguish its output from a truly random sequence. Variably Modified Permutation Composition (VMPC) is another RC4 variant. It uses similar key schedule...

VMPC can stand for: Ventromedial prefrontal cortex Variably Modified Permutation Composition This disambiguation page lists articles associated with the...

is a polynomial in several variables which is structured in such a way that information about how a group of permutations acts on a set can be simply...

{\begin{bmatrix}0&0&0&1\\0&0&1&0\\1&0&0&0\\0&1&0&0\end{bmatrix}}}    (permutation of coordinate axes) The simplest orthogonal matrices are the 1 × 1 matrices...

approximate randomization and permutation tests. An approximate randomization test is based on a specified subset of all permutations (which entails potentially...

that for fixed α, they give many examples of permutation polynomials; polynomials acting as permutations of finite fields. For integer n > 0 and α in...

and trivially breakable. Permutation: finally, the 32 outputs from the S-boxes are rearranged according to a fixed permutation, the P-box. This is designed...

coefficients λ1, λ2, ..., λn are determined uniquely up to a permutation. If the change of variables is given by an invertible matrix that is not necessarily...

real part of the complex variable s = σ + i t {\displaystyle s=\sigma +it} in analytic number theory the sign of a permutation in the theory of finite...

2 5 7, 3 4 7, 3 6 5 , and any even number of permutations of the indices, but −1 for any odd permutations of the listed triples (e.g.   ε 123 = + 1   {\displaystyle...

is the same as a permutation that makes all of X into a single cycle, which is a special type of permutation - a circular permutation. Alternatively, a...

an eighth note (1/8) and a sixteenth note (1/16). Dotted or otherwise modified notes have other durations. In time signatures the lower numeral, the beat...

Sanders Peirce. permutation The structural rule that allows one to exchange two formulas that are on the same side of the arrow. permutation invariant A property...

are also considered. For more details, please refer to the section on permutation representations. Other than a few marked exceptions, only finite groups...

1854 = number of permutations of 7 elements with no fixed points, Mertens function zero 1855 = rencontres number: number of permutations of [7] with exactly...

including Russell's paradox. To avoid such paradoxes, the formalism was modified so that a natural number is defined as a particular set, and any set that...

concept among other Eastern Catholics such as the Maronite Church's permutation of the West Syriac Rite.: xv  The Byzantine Rite was regularly practiced...

convolution into pointwise product is the DFT up to a permutation of coefficients. Since the number of permutations of n elements equals n!, there exists exactly...

Prime-factor FFT algorithm Rader's FFT algorithm Bit-reversal permutation — particular permutation of vectors with 2m entries used in many FFTs. Butterfly diagram...

group imply that ρ(g) is a bijection (or permutation) for all g in G. Thus we may equivalently define a permutation representation to be a group homomorphism...

to be the average of the sign-adjusted values over all the permutations of its variables: Alt ⁡ ( ω ) ( x 1 , … , x k ) = 1 k ! ∑ σ ∈ S k sgn ⁡ ( σ )...

the commutator, and the other relations can be found by taking cyclic permutations of x, y, z components (i.e. change x to y, y to z, and z to x, repeat)...

logarithmic methods such as μ-law. Some Agile teams use a modified series called the "Modified Fibonacci Series" in planning poker, as an estimation tool...

plot of f ^ j ( x j ) {\displaystyle {\hat {f}}_{j}(x_{j})} , or using permutation of the residuals to construct tests for residual pattern. When smoothing...

plural. With four cases and three genders plus plural, there are 16 permutations of case and gender/number of the article (not the nouns), but there are...

primes. For example, there is no non-constant polynomial, even in several variables, that takes only prime values. However, there are numerous expressions...

Job-shop scheduling problem (JSP) Open-shop scheduling problem (OSP) Permutation flow shop problem (PFSP) Single machine total tardiness problem (SMTTP)...

Random naive Bayes Random permutation statistics Random regular graph Random sample Random sampling Random sequence Random variable Random variate Random...